A low slung wooden race car body has magnets inside and four magnetic wheels to attach with ease. This five-piece set is easy enough for threes to put together and take apart with a sense of building their own working vehicle. There is another five-piece car in the line, the Maddy Micro with a taller body. Either of these is less challenging than the 15-piece Dart or Hatch that are a lot trickier to put together.